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h উচ্চতা থেকে একটি বস্তুকে বিনা বাধায় পড়তে দিলে ভূমি হতে কত উচ্চতায় এর গতিশক্তি বিভব শক্তির দ্বিগুণ হবে?

\frac{h}{6}

\frac{h}{3}

\frac{2 h}{3}

\frac{5 h}{6}

ANSWER : 2

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&nbsp;&nbsp;মোট উচ্চতা h ও ভূমি থেকে x উচ্চতায় &nbsp;Ek = nEp&nbsp;হলে&nbsp;x = <img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABUAAAAcCAIAAAABemMJAAAAAXNSR0IArs4c6QAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAQ1JREFUOE/lVLsRgzAMlTMLNBwTwASkYoN0Zpg0UMIUaWJvkAlyKWLvQiTjI3BYhBS5FKjhIz3pSbYe9IwpCQBZbTi//w+8X8nP8P6AVcJmn/cUrlUuhMgby4Zx9U2dAUiF/LETqbgwlv+IWoX3HH5EIQ9kYRQxCRjTPzafJTE1bQC64+kMRRQcgcCc7Gw2OPj5bwBjyL/x21jyUXuf34/Pzzb5cnmtxq2utDuUb+sjtjKQjAd6AJcN0w3PVa1AVFS0beEWyxttJmkFbSlpxaBZTj3mNhEz8npJof1/fyJ8LjXoCojgBE/9m8dNlgW+6EuXlrFuNC93i5vs9M3XUMR6Vm9Z3+m6Nwzd+/1/AR1vzZvITt8xAAAAAElFTkSuQmCC">এখানে n= 2X =<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAcAAAAcCAIAAAAiITLcAAAAAXNSR0IArs4c6QAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAMNJREFUKFO1UbkRgzAQXFELShgqgApMAU6diWKcQEoJ5MiNeBz46EXek3jGYzvycIlOO3t70i5CCN4BqDphuxTi6d0bGDLSMD/vJaa2NsbU/awImdJVgPNUoJbzRBRd+70huoGc4YR4L5mKVoVVMQGG5nLFKTeq8lHxDX+hXwVw1Laf7537Wj1UG9vkI8iVB84xB18O45TgLRXxnYsms5LurTXGNiMKm6dv7RGKphqjIFeXxSW5LZjUyiVnuTGKNHqUDy+cwKesJmGG1wAAAABJRU5ErkJggg==">&nbsp;&nbsp;

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